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Byron Generating Station — Power plant · Nuclear · Constellation NuclearLowe's - 1440 - Rockford, IL RDC (POI 1) — Under construction · Solar · IL · 2.3 MW · 13.7 mi awayLowe's - 1440 - Rockford, IL RDC (POI 2) — Under construction · Solar · IL · 2.3 MW · 13.7 mi away
  • Clean firm
  • Wind & solar
  • Under construction
  • Operating
  • 10 · 100 · 1,000 MW

Byron Generating Station

Power plant · Nuclear

Key facts

Power plant · Nuclearran 93% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1985
Net generation, 2025
19,914,452 MWh
Grid
345 kV to Commonwealth Edison Co (PJM)
Location
Ogle County, Illinois
Operated by
Constellation NuclearSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2001 to 2026
Fuel burned MMBtu by year, 2001 to 2026
  • Nuclear

Operations detail

Details

Who’s behind it

No companies named in filings yet.

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Technology
Nuclear source: “Nuclear”
Age
41 years since 1985
Heat rate
10,443 Btu/kWh 2025
All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Gem
Unit ids
G100000500080, G100000500082
Location id
L100000500048
Grid
Nerc region
RFC
Report year
2025
Grid voltage kv
345
Transmission owner
Commonwealth Edison Co
Balancing authority code
PJM
Balancing authority name
PJM Interconnection, LLC
Fuel burned (MMBtu), 2025207,974,323
Capacity factor, 20250.928
Heat rate (Btu/kWh), 202510,443.4
Net generation (MWh), 202519,914,452
Balancing authority codePJM

Timeline

  • In service · EIA-860M

Sources

4 sources

Sources EIA-860M · GEM · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
  • EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
  • EIA-860M Preliminary Monthly Electric Generator Inventory

Every source and license · Attribution

View at source

Around this plant

Nearby

within 15 mi
ProjectKindAwayMW
Lowe's - 1440 - Rockford, IL RDC (POI 1) Under construction Solar 13.7 mi 2.3
Lowe's - 1440 - Rockford, IL RDC (POI 2) Under construction Solar 13.7 mi 2.3

Sources EIA-860M

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026

Attribution